Memory device having a simplified sense amplifier with a buffer

Details Memory device having a simplified sense amplifier with a buffer Memory device having a simplified sense amplifier with a buffer

1987-03-16

1989-03-07

Hecker, Stuart N.

Static information storage and retrieval

Read/write circuit

Precharge

365190, 365189, G11C 700

Patent

active

048113000

ABSTRACT:
A memory includes a sense amplifier with a buffer (TA) positioned at the end of each bit line, the buffer amplifier being alternatively used as a "sense amplifier". On the bit line Q the buffer amplifier includes only five transistors; the transmission transistor TR ("passing transistor") is activated during the read operation RD, and also during the precharging operation PCH; as a result thereof the output signal S always has zero value during the precharging operation. The parasitic capacitance CS is small relative to the equivalent capacitance CB of the bit line Q, and the supporting inverter SI is small with respect to the amplifying inverter PI.

REFERENCES:
patent: 4062000 (1977-12-01), Donnelly
patent: 4395765 (1983-07-01), Moffitt et al.
patent: 4667310 (1987-05-01), Takada

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